3D Electronic Compass
GCM387
3D Electronic Compass
  • Azimuth accuracy: 0.5°
  • Roll angle measurement range: <±180°
  • Tilt resolution:0.1°
  • Tilt accuracy:<0.2° (full range)
Product Introduction


The GCM387 is a high-performance, cost-effective 3D electronic compass. It employs innovative 24-point rotating acquisition and calibration technology, effectively enhancing anti-interference capabilities while simplifying operation. An integrated high-precision accelerometer supports full-range (±180°) tilt compensation, ensuring accurate heading data even under complex attitude conditions. It maintains stable measurement accuracy in environments with fixed magnetic field interference and supports flexible configuration via RS232/TTL dual-mode communication interfaces.
This product integrates a triaxial magnetometer and a triaxial accelerometer, featuring excellent resolution and strong noise suppression capabilities. It achieves low power consumption and high stability in a compact design. Suitable for handheld devices, mobile terminals, antenna stabilization, vehicle navigation, and system integration, it meets the diverse application needs for high-performance orientation measurement.


Performance parameters

GCM387

 

Parameter Indicators

Compass heading parameters

Optimal heading accuracy

0.5°

Resolution

0.1°

Compass Tilt Parameters

Pitch accuracy

0.1°<15°(Measurement Range)

0.1°<30°(Measurement Range)

0.1°<60°(Measurement Range)

0.2°<85°(Measurement Range)

Pitch roll range

±85°

Roll accuracy

0.1°<15°(Measurement Range)

0.1°<30°(Measurement Range)

0.1°<60°(Measurement Range)

0.2°<180°(Measurement Range)

Roll tilt range

±180°

Resolution

0.1°

Compass Tilt Parameters

Hard iron calibration

Yes

 

Soft iron calibration

Yes

Magnetic field interference calibration method

24-point rotation acquisition calibration

Interface Characteristics

Startup delay

<50ms

Maximum output rate

20Hz/s

Communication rate

2400to 115200baud

Output format

Binary high-performance protocol

Power Supply

Supply voltage

Binary high-performance protocol

Current (typical)

50mA

Sleep mode

TBD

Environment

Operating temperature

-40℃~+85℃

Storage temperature

-40℃~+85℃

Vibration resistance

100g

Electromagnetic Compatibility

Compliant with EN61000 and GBT17626

Mean Time Between Failures (MTBF)

≥99000hours/time

Insulation Resistance

≥100megohms

Shock Resistance

100g@11ms, triaxial (half-sine wave)

Vibration Resistance

10grms、10~1000Hz

Product Dimensions

33×27×9.5mm

Weight

<15g

Product Size